Hello, I am new to this forum and new to ownership of an F150 overall. I believe this is a 2013 F150 Lariat Ecoboost, but I don't have much information in regard to like engine specs.

It's heavily modified from the previous owner.

After a drive home from a location, I got home and heard some sort of sizzling noise, looked under, and saw some sort of liquid that was dripping on what I assume is the exhaust pipe, causing it to burn and hit the ground.

I am wondering if this is something that should seek immediate attention or is something I can ignore. I read around and heard about something called "eco ****" meaning it's just liquid from the condensation of the air conditioning, but I'd like to make sure (I think I saw that in this post: https://www.f150forum.com/f38/drippi...-truck-154725/)

I will attach a video to better describe the issue

Also, I'm not sure if this may be related, but whenever I unlock my truck or hop in (and sometimes even when just walking past I can hear it) I hear a knocking that is in the dashboard. It goes off just for a little bit and sometimes comes back. I looked into this online and found that it may be the "Heater Blend Door Actuator", which is common for knocking behind the radio, but my air conditioning appears to work fine as well. I think this is something I should definitely get checked out but heard repairs can be up to 1k?

Thank you for your help and for taking the time to read my forum help post!

(I have attached the video below)

 

Where does your air conditioner condensate drain from? If your truck is heavily modified then some monkey may have removed or moved the condensate drain tube which usually drains from somewhere in the area shown.

 

I’m not sure. I’ll try and look it up and see if I can see it from under the truck.

Is it as simple as getting a new drain tube that redirects it somewhere else to drain?

 

You should be able to put your finger in the liquid on the ground and verify it's water.

 

Yup! Water on hot metal exhaust promotes corrosion. Find the source, I think it is the air conditioning, and route it somewhere safe to the ground.

As others have said, verify it is water. Not coolant, gasoline, or oil. It seems to look like water and you didn't mention odor which gasoline, oil, or coolant would have. Also those would leave residue on your hot exhaust.

 

Next time I’ll drive it I’ll 100% verify it but I’m 99% sure it was water, it didn’t leave any stains or anything on the ground and the mist felt like water. Appreciate the help from all of you 👍

 

My truck does the same.